DIY Antennas, QRP, SDR & Ham Radio Projects from VU3DXR
Explore a comprehensive collection of technical articles and DIY guides on amateur radio at vu3dxr.in. This category features expert insights into antenna design, SDR, and practical electronics. Whether you’re a seasoned ham or a beginner, discover step-by-step tutorials and projects to enhance your radio communication and technical skills.
By DXR News Desk August 13, 2025 The National Oceanic and Atmospheric Administration (NOAA) is nearing the conclusion of its long-standing Polar Operational Environmental Satellites (POES) program, a constellation that has provided critical weather and environmental data for decades. As of today, the remaining satellites—NOAA-15 and NOAA-19—are on the cusp of decommissioning, marking the transition […]
GOES-R satellite reception guide — assemble an L-band dish/patch, filtered LNA, and RTL-SDR to capture continuous high-resolution weather imagery without internet
Ham radio users fear interference as AST SpaceMobile seeks to use the 70 cm band. FCC decision could shape the future of amateur radio
Learn how to receive high-resolution LRPT weather images from Meteor-M2 satellites using an RTL-SDR, 137 MHz antenna, and SatDump decoder. Complete guide covering pass prediction, signal reception, and image decoding for satellite enthusiasts
NOAA-15 & NOAA-19 shutdown in Aug 2025 ends APT signals. Hobbyists: explore Meteor-M2, GOES, & SDR skills to keep decoding weather satellites data.
Meet the HackRF Pro from Great Scott Gadgets. This powerful successor to the HackRF One features a 100 kHz to 6 GHz range, built-in TCXO, and USB-C for advanced SDR development
APRS.Chat is a web-based mailbox for APRS users, storing all your messages even when your radio is offline. Reliable, modern APRS communication.
NOAA-15 is scheduled for decommissioning on August 12, 2025, with NOAA-19 following a week later on August 19, 2025, have exceeded their primary mission lives
HydraSDR RFOne is a fully open-source 24 MHz–1.8 GHz SDR receiver with 10 MHz bandwidth, 12-bit ADC, and USB-C — a high-performance wideband platform for satellite, VHF/UHF, and RF research
In-depth review of the LILYGO T-Embed ESP32-S3 SI4732 multiband DSP radio covering hardware architecture, reception performance, firmware ecosystem, and real-world usability for makers, SWL, and ham radio enthusiasts.